The hydrological behaviour of a given catchment
depends on the multiple interactions that have been taken place
over the past recent (days), medium (years), and long (geological)
time scales between the main internal (geological) and external
(weathering) factors (climatology and meteorology).
These interactions occur at the interface between
the lithosphere and the atmosphere and determine the characteristics
of terrestrial morphology, of the catchments’ hydrology,
of the soils and of the type of land use. Beside these, the
actual catchment hydrology is influenced by the many other interactions
that take place between the geomorphologic factors, the soil
characteristics and the vegetation particularities
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